31780480

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 84602880

約数和(自身を除く): 52822400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 127, 128, 136, 160, 170, 184, 230, 254, 272, 320, 340, 368, 391, 460, 508, 544, 635, 640, 680, 736, 782, 920, 1016, 1088, 1270, 1360, 1472, 1564, 1840, 1955, 2032, 2159, 2176, 2540, 2720, 2921, 2944, 3128, 3680, 3910, 4064, 4318, 5080, 5440, 5842, 6256, 7360, 7820, 8128, 8636, 10160, 10795, 10880, 11684, 12512, 14605, 14720, 15640, 16256, 17272, 20320, 21590, 23368, 25024, 29210, 31280, 34544, 40640, 43180, 46736, 49657, 50048, 58420, 62560, 69088, 81280, 86360, 93472, 99314, 116840, 125120, 138176, 172720, 186944, 198628, 233680, 248285, 250240, 276352, 345440, 373888, 397256, 467360, 496570, 690880, 794512, 934720, 993140, 1381760, 1589024, 1869440, 1986280, 3178048, 3972560, 6356096, 7945120, 15890240, 31780480]

約数ペア:

[(1, 31780480), (2, 15890240), (4, 7945120), (5, 6356096), (8, 3972560), (10, 3178048), (16, 1986280), (17, 1869440), (20, 1589024), (23, 1381760), (32, 993140), (34, 934720), (40, 794512), (46, 690880), (64, 496570), (68, 467360), (80, 397256), (85, 373888), (92, 345440), (115, 276352), (127, 250240), (128, 248285), (136, 233680), (160, 198628), (170, 186944), (184, 172720), (230, 138176), (254, 125120), (272, 116840), (320, 99314), (340, 93472), (368, 86360), (391, 81280), (460, 69088), (508, 62560), (544, 58420), (635, 50048), (640, 49657), (680, 46736), (736, 43180), (782, 40640), (920, 34544), (1016, 31280), (1088, 29210), (1270, 25024), (1360, 23368), (1472, 21590), (1564, 20320), (1840, 17272), (1955, 16256), (2032, 15640), (2159, 14720), (2176, 14605), (2540, 12512), (2720, 11684), (2921, 10880), (2944, 10795), (3128, 10160), (3680, 8636), (3910, 8128), (4064, 7820), (4318, 7360), (5080, 6256), (5440, 5842)]